<!DOCTYPE html>
<html>
<head>
    <title>课件列表</title>
    <meta charset='UTF-8'>
</head>
<body>
    <H1>课件列表</H1>
    <div id="mainlist">

    </div>
    <script>
        let tmpStr = `<div id="mainlist">`
        for(let i=2;i<=13;i++){
            tmpStr+=`<a href="${i}.html">第 ${i} 课</a><br />`
        }
        tmpStr+=`</div>`
        document.getElementById("mainlist").innerHTML=tmpStr
    </script>
</body>
</html>